Don’t use the Neoplasm Table with Neuroendocrine Tumors (NET)

Don’t use the Neoplasm Table with Neuroendocrine Tumors (NET)

Previously neuroendocrine tumors (NETs) were called carcinoid tumors and some clinicians will continue to call them carcinoid tumors.  This is a physician query opportunity.

They are not universally consistent in their characteristics. Some neuroendocrine cancer grows quickly while others grow slowly. Most of these tumors develop in the lungs, appendix, small intestine, rectum, testicles, ovaries, and pancreas, but and essentially, can be found anywhere. Some tumors can produce hormones, while others don’t.  Symptoms may vary depending on the part of the body affected by the tumor.[i] They are comprised of cells that may produce hormonal syndromes which impact the normal hormonal balance that supports body system functions.

NETs can be malignant or benign.  Unfortunately, the clinical documentation we see as coders, does not always clearly specify malignant or benign.  So, here’s another physician query opportunity!  If the documentation does not specify the NET as malignant or benign, the default is benign.  This path to benign is per the indexing of tumor, neuroendocrine:  D3A.8-Other benign carcinoid tumors

Often this neuroendocrine tumor is abbreviated in the documentation.  Look for NET or other abbreviations such as PNET or PanNET for pancreatic NET, GINET for gastrointestinal NET, and WDNET or PD NET for well-differentiated or poorly-differentiated neuroendocrine tumor.

IMPORTANT:  Neuroendocrine tumors have their own set of codes. They are not coded from the neoplasm table codes. I can’t explain the logic for not including them in the table!

  • Category D3A.00-D3A.8 are Benign carcinoid tumors of specific sites and includes a code for unspecified site
  • Category C7A.00-C7A.098-Malignant Carcinoids by site
  • Category C7B.00-C7B.09-Secondary Carcinoid Tumors by site
  • Category C7A.1-Malignant poorly differentiated neuroendocrine tumors (Any Primary site); Includes High Grade
  • Category C7A.8-Other malignant neuroendocrine tumors (Any Primary site)
  • Category C7B.1-Secondary Merkel cell carcinoma (NOTE: Do not use secondary codes from the neoplasm table) Primary Merkel cell is category C4A
  • Category C7B.8-Other secondary neuroendocrine tumors. (NOTE:  Do not use secondary codes from the neoplasm table)

These tumors arise from epithelium; thus, malignant tumors in this group are referred to as neuroendocrine carcinomas.[ii]  NETs can spread to the bones, brain, lungs, and other locations. The type and location of the cancer influences the treatments.  Treatment may include surgery, radiation, targeted therapy, or a combination of these treatment techniques. Finally, many of the tumors in the categories above yield an HCC and some a RxHCC.

If you remember one thing about NETs, it’s to NOT use the neoplasm table.  Coders and clinical documentation integrity specialists play a vital role in accurately capture the documentation needed to apply a specific code for NETs and help future clinicians prepare an appropriate care plan for the patient.

About the Author:  Pam Scott is Vice President of Coding Support and Compliance Services at St. Louis-based First Class Solutions, Inc.  She is the firm’s educator, a frequent speaker at State HIM meetings, and serves as a coding compliance auditor for several of the firm’s clients.


https://www.sayyestohope.org/neuroendocrin/#:~:text=In%20the%20later%20stages%20of,%2C%20difficulty%20breathing%2C%20and%20diarrhea.

https://librepathology.org/wiki/Neuroendocrine_neoplasms

Facebook
Twitter
LinkedIn

Pamela Scott, RHIT, CCS, CCDS, CRC, AHIMA-Approved ICD-10 CM/PCS Trainer

Pam provides coding support and coding compliance services for our clients. She has served as a coding mentor to many of our clients’ coders and especially those new to the coding field. Our clients often compliment her on her caring attitude and quality of her work. Certified in risk-adjustment coding (HCCs), Pam has participated in governmental audits of Medicare Advantage plans and can assist clients in understanding the nuances of this coding system

Related Stories

Where is the OCR?

The articles describe a significant 2026 dispute over the misuse of health information exchanged by asserting a treatment purpose through Carequality. (Raths) The core allegation

Read More

Leave a Reply

Please log in to your account to comment on this article.

Featured Webcasts

2026 ICD-10-CM/PCS Coding Clinic Update Webcast Series

Uncover essential coding insights with nationally recognized coding authority Kay Piper, RHIA, CDIP, CCS. Through ICD10monitor’s interactive, on‑demand webcast series, Kay walks you through the AHA’s 2026 ICD‑10‑CM/PCS Quarterly Coding Clinics, translating each update into practical, easy‑to‑apply guidance designed to sharpen precision, ensure compliance, and strengthen day‑to‑day decision‑making. Available shortly after each official release.

April 13, 2026

2026 ICD-10-CM/PCS Coding Clinic Update: Fourth Quarter

Uncover critical guidance on the ICD-10-CM/PCS code updates. Kay Piper reviews and explains ICD-10-CM/PCS coding guidelines in the AHA’s fourth quarter 2026 ICD-10-CM/PCS Coding Clinic in an easy to access on-demand webcast.

December 14, 2026

2026 ICD-10-CM/PCS Coding Clinic Update: Third Quarter

Uncover critical guidance on the ICD-10-CM/PCS code updates. Kay Piper reviews and explains ICD-10-CM/PCS coding guidelines in the AHA’s third quarter 2026 ICD-10-CM/PCS Coding Clinic in an easy to access on-demand webcast.

October 12, 2026

2026 ICD-10-CM/PCS Coding Clinic Update: Second Quarter

Uncover critical guidance on the ICD-10-CM/PCS code updates. Kay Piper reviews and explains ICD-10-CM/PCS coding guidelines in the AHA’s second quarter 2026 ICD-10-CM/PCS Coding Clinic in an easy to access on-demand webcast.

July 13, 2026

Trending News

Featured Webcasts

Compliance for the Inpatient Psychiatric Facility (IPF-PPS): Minimizing Federal Audit Findings by Strengthening Best Practices

Federal auditors are intensifying their focus on inpatient psychiatric facilities, using advanced data analytics to spotlight outliers and pursue high‑dollar repayments. In this high‑impact webcast, Michael Calahan, PA, MBA, Compliance Officer and V.P., Hospital & Physician Compliance, breaks down what regulators are really targeting in IPF-PPS admissions, documentation, treatment and discharge planning. Attendees will learn practical steps to tighten processes, avoid common audit triggers and protect reimbursement and reduce the risk of multimillion-dollar repayment demands.

April 9, 2026

Mastering MDM for Accurate Professional Fee Coding

In this timely session, Stacey Shillito, CDIP, CPMA, CCS, CCS-P, CPEDC, COPC, breaks down the complexities of Medical Decision Making (MDM) documentation so providers can confidently capture the true complexity of their care. Attendees will learn practical, efficient strategies to ensure documentation aligns with current E/M guidelines, supports accurate coding, and reduces audit risk, all without adding to charting time.

March 31, 2026

The PEPPER Returns – Risk and Opportunity at Your Fingertips

Join Ronald Hirsch, MD, FACP, CHCQM for The PEPPER Returns – Risk and Opportunity at Your Fingertips, a practical webcast that demystifies the PEPPER and shows you how to turn complex claims data into actionable insights. Dr. Hirsch will explain how to interpret key measures, identify compliance risks, uncover missed revenue opportunities, and understand new updates in the PEPPER, all to help your organization stay ahead of audits and use this powerful data proactively.

March 19, 2026

Top 10 Audit Targets for 2026-2027 for Hospitals & Physicians: Protect Your Revenue

Stay ahead of the 2026-2027 audit surge with “Top 10 Audit Targets for 2026-2027 for Hospitals & Physicians: Protect Your Revenue,” a high-impact webcast led by Michael Calahan, PA, MBA. This concise session gives hospitals and physicians clear insight into the most likely federal audit targets, such as E/M services, split/shared and critical care, observation and admissions, device credits, and Two-Midnight Rule changes, and shows how to tighten documentation, coding, and internal processes to reduce denials, recoupments, and penalties. Attendees walk away with practical best practices to protect revenue, strengthen compliance, and better prepare their teams for inevitable audits.

January 29, 2026

Trending News

Prepare for the 2025 CMS IPPS Final Rule with ICD10monitor’s IPPSPalooza! Click HERE to learn more

Get 15% OFF on all educational webcasts at ICD10monitor with code JULYFOURTH24 until July 4, 2024—start learning today!

BLOOM INTO SAVINGS! Get 25% OFF during our spring sale through March 27. Use code SPRING26 at checkout to claim this offer.

CYBER WEEK IS HERE! Don’t miss your chance to get 20% off now until Dec. 1 with code CYBER25

CYBER WEEK IS HERE! Don’t miss your chance to get 20% off now until Dec. 2 with code CYBER24